Saskatchewan Plumber Certification Exam
Questions And Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A | Instant
Download Pdf
1. What is the minimum slope required for a horizontal 2-inch drain
pipe according to plumbing standards?
a) 1/16 inch per foot
b) 1/8 inch per foot
c) 1/4 inch per foot
d) 1/2 inch per foot
Proper drainage requires at least 1/4 inch per foot to ensure waste
flows without clogging.
2. Which type of pipe is commonly used for potable water
distribution in residential buildings?
a) ABS
b) PEX
c) Cast iron
d) PVC
PEX is flexible, corrosion-resistant, and approved for potable water
in Saskatchewan.
3. What is the primary purpose of a P-trap in plumbing?
a) To regulate water pressure
b) To prevent sewer gases from entering the building
c) To filter solids
d) To increase water flow
, The P-trap holds water, creating a seal that stops sewer gases
from coming back into living spaces.
4. What is the maximum distance a fixture can be from a vent before
requiring an individual vent?
a) 2 feet
b) 4 feet
c) 6 feet
d) 10 feet
Proper venting prevents siphoning of traps; standard codes set
maximum distances at 6 feet for typical fixtures.
5. Which material is typically used for underground sanitary sewer
piping?
a) Copper
b) PEX
c) PVC
d) Galvanized steel
PVC is durable, corrosion-resistant, and cost-effective for buried
sanitary lines.
6. What is the main function of a backflow preventer?
a) To increase water pressure
b) To filter sediments
c) To stop contaminated water from entering the potable water
system
d) To regulate temperature
Backflow preventers protect potable water from contamination
due to reverse flow.
, 7. Which type of vent prevents the siphoning of water from traps in
a multi-story building?
a) Wet vent
b) Stack vent
c) Relief vent
d) Combination vent
Stack vents extend through the roof and allow air to enter,
maintaining trap seals.
8. When soldering copper pipes, which flux should be used?
a) Acid flux
b) Water-soluble flux for potable systems
c) Oil-based flux
d) No flux
Water-soluble flux is safe for drinking water pipes and promotes
proper soldering.
9. How often should plumbing systems in commercial buildings be
inspected according to Saskatchewan regulations?
a) Every 1 year
b) Every 2 years
c) Every 3 years
d) Every 5 years
Regular inspection every three years helps ensure safety and code
compliance.
10. Which valve is typically installed to isolate water supply to a
fixture?
a) Gate valve
b) Angle stop valve
Questions And Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A | Instant
Download Pdf
1. What is the minimum slope required for a horizontal 2-inch drain
pipe according to plumbing standards?
a) 1/16 inch per foot
b) 1/8 inch per foot
c) 1/4 inch per foot
d) 1/2 inch per foot
Proper drainage requires at least 1/4 inch per foot to ensure waste
flows without clogging.
2. Which type of pipe is commonly used for potable water
distribution in residential buildings?
a) ABS
b) PEX
c) Cast iron
d) PVC
PEX is flexible, corrosion-resistant, and approved for potable water
in Saskatchewan.
3. What is the primary purpose of a P-trap in plumbing?
a) To regulate water pressure
b) To prevent sewer gases from entering the building
c) To filter solids
d) To increase water flow
, The P-trap holds water, creating a seal that stops sewer gases
from coming back into living spaces.
4. What is the maximum distance a fixture can be from a vent before
requiring an individual vent?
a) 2 feet
b) 4 feet
c) 6 feet
d) 10 feet
Proper venting prevents siphoning of traps; standard codes set
maximum distances at 6 feet for typical fixtures.
5. Which material is typically used for underground sanitary sewer
piping?
a) Copper
b) PEX
c) PVC
d) Galvanized steel
PVC is durable, corrosion-resistant, and cost-effective for buried
sanitary lines.
6. What is the main function of a backflow preventer?
a) To increase water pressure
b) To filter sediments
c) To stop contaminated water from entering the potable water
system
d) To regulate temperature
Backflow preventers protect potable water from contamination
due to reverse flow.
, 7. Which type of vent prevents the siphoning of water from traps in
a multi-story building?
a) Wet vent
b) Stack vent
c) Relief vent
d) Combination vent
Stack vents extend through the roof and allow air to enter,
maintaining trap seals.
8. When soldering copper pipes, which flux should be used?
a) Acid flux
b) Water-soluble flux for potable systems
c) Oil-based flux
d) No flux
Water-soluble flux is safe for drinking water pipes and promotes
proper soldering.
9. How often should plumbing systems in commercial buildings be
inspected according to Saskatchewan regulations?
a) Every 1 year
b) Every 2 years
c) Every 3 years
d) Every 5 years
Regular inspection every three years helps ensure safety and code
compliance.
10. Which valve is typically installed to isolate water supply to a
fixture?
a) Gate valve
b) Angle stop valve
